Portable electric lamp



1.1. SULLIVAN.

- PORTABLE ELECTRIC LAMP.

APPLICATION HLED MAY17.192|.

. 1,419,327 Patentei June 13,1922.

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annnv a. SULLIVAN, or SPOKANE, WASHINGTON.

PORTABLE ELECTRIC LAMP.

ament.

Application filed May 1'7,

To all whom it may concern Be it known that I, JERRY J. SULLIVAN, a citizen of the United States, residing at Spokane, in the county of Spokane and State of Washington, have invented certain new and useful Improvements in Portable Electric Lamps, of which the following is a specification.

My present invention relates to improvements in portable electric lamps of that type especially adaptable for use by automobile owners and others, while working about such vehicles, although of course the lamp is adapted for use in various other ways.

The primary object of the invention is the provision of a portable electric lamp which is capable of various adjustments in order that it may be utilized for illuminating purposes, and to this end the invention involves certain novel combinations and arrangements of parts for mounting the lamp on a stand or support, where by the lamp may be adjusted vertically, rotated horizontally, and oscillated in a vertical plane; and the lamp may also readily be detached from the support or stand and used in the usual or ordinary manner.

In the accompanying drawings I have illustrated one complete example of the physical embodiment of my invention wherein the parts are combined and arranged according to the best mode I have thus far devised for the practical application of the principles of my invention.

Figure 1 is a view in side elevation of the portable lamp shown in connection with its extensible stand or support and adapted for horizontal rotary and vertical oscillating adjustment.

Figure 2 is a top plan view of the device of Figure 1, enlarged.

Figure 3 is a view in side elevation of the lamp, detached from its stand.

Figure 4 is an enlarged, detail sectional view showing the means for horizontally rotating or turning the lamp on its stand.

Figure 5 is an enlarged detail view of the duplex latch for securing the lamp in rotatable position on the supporting bracket of the stand.

In the preferred form of the invention as shown in the drawings the lamp comprises a metallic cylindrical casing 1 having an oblique face to receive the lens 2, which is Specification of Letters Patent.

Patented June 13, 1%22.

1921. Serial N0. 470,254.

preferably of wired glass, and retained by the ring or rim 3 of the casing 1. The formation of the lens with an embedded wire mesh, as will be evident, prevents flying of broken pieces of glass, and also reinforces the lens to reduce the liability of breaking. The electric bulb E within the lamp may be of usual structure, and is shielded or protected from breaking by the wire-reinforced lens.

-In some instances the lamp may be used as shown in Figure 3 and permitted to stand upon any usual supporting surface, and for this purpose several short legs at, disposed at suitable intervals around the bottom of the lamp near its circular edge, and these legs are provided with balls or casters 5 to facilitate movement of the lamp across a supporting surface. The portable lamp may be carried in the hand by grasping the handle 6, and the usual lead wires for electric current are indicated at 7.

In mounting the portable lamp for various uses, I employ a comparatively broad base 8 in the form of a flat disk of proper weight to stabilize the lamp, and upon the base is supported an extensible stand 9 in the form of a lazytongs made up of pivoted levers or arms 9 and 9 which are attached to the base at 10 and 11, the element 11 being a short link pivoted to one of the arms and to the base. At the top of the extensible stand a similar short link 11 is provided, and two supporting sleeves 12 and 13 are pivoted respectively to one of the arms 9 and to said link 11. These sleeves are designed to receive and retain a supporting bar 14 disposed horizontally at the top of the extensible stand, and to this supporting bar a clamp bracket 15 is attached. On top of the bracket a socket member or cup 16 is attached, a horizontal flange 17 of the clamp bracket being employed with rivets 18 passing through the bottom of the cup or socket member and through the flange to form a rigid connection. The clamp bracket may be composed of a single piece of metal with two parallel arms, recessed as as 15 to fit around the bar 14, and screws 15 are utilized to clamp these two arms together below the bar. The arms at their recesses 15 are made to engage the bar with friction as will permit the bracket to be turned on the bar, but the frictional contact is sufficient to insure a stable position of the bracket on the bar. Thus the bracket may be turned on the bar when power is applied thereto, and the friction of the clamp bracket is suiiicient to hold the bracket in adjusted position.

The cup or socket member 16 is adapted to receive an annular head 19 secured centrally of the lamp casing at the bottom thereof, and as best seen in Figure 3 this head has an annular retaining groove 20 which is alined with a pair of diametrically opposed orifices or openings 21 in the cup.

In Figure 5 a detachable, duplex, latch is illustrated which is utilized to retain the lamp, through its head, in operative posi tion in the cup, and the two pins 22, 22 of the latch are adapted to engage the openings 21'- oi the cup and groove 20 of the head for retaining the lamp on its bracket. The duplex latch comprises a pair of complementary arms 23, 23 having intermediate bends pivoted together at 24:, and provided with a guide bar 25 passed through an opening in one arm and fixed at the inner side of the opposite arm, and a spring 26 coiled about the bar and interposed between the ends of" the arms tends to hold the two pins 22 in retaining position in the openings 21 oi the cup and the annular groove of the head 19.

By means of the handle 27 attached to the handle bracket 28, which latter is like: to the base 8, the lamp and its stand may be carried from place to place, and the lamp setup on a supporting surface as indicated in Figure 1.

Through the instrumentality of the extensible stand or lazy-tongs connection the altitude of the lamp may be varied and ad- 'justed to the desired height; through the frictional connection of the clamp bracket on the supporting bar 14L. of the stand the lamp may be angularly adjusted, and through the connection of the latch pins 22 in the groove 20 of the head 19, the lamp may be turned to direct its rays in substantially any direction required.

When the lamp is to be dismounted for use in its simplest form as in Figure 8, the spring pressed ends of the latch arms 23 are drawn together, or toward each other, thus withdrawing the pins 22 from the groove 20 permitting the head to be lifted from its socket or cup 16, and the extensible stand may be compacted or the arms closed together into compact form for stor- Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent is 1. The combination in a portable lamp with a base, of a lazy-tongs stand mounted thereon and a supporting bar on said stand, an adjustable bracket on said bar, a rotary lamp supported in the bracket, and means for retaining said lamp in the bracket.

2. The combination in a portable lamp with a base, of an extensible stand mounted on said base and provided with a support-- ing bar, a clamp bracket adjustable on said bar and a socket member fixed to said bracket, a lamp having a head in said socket, and detachable means for retaining said head.

3. The combination in a portable lamp with a base, of an extensible stand having a supporting bar, a clamp bracket adjust: able on the bar and a cup member fixed on said bracket having openings in its walls, a lamp casing having a head and formed with an annular groove in said head, and a re taining latch having opposed pins engaging said openings and groove for the purpose described. v v

t. The combination with a supporting bracket of a socket member thereon having openings, a lamp having a head provided with an annular groove, and a retaininglatch comprising pivoted, spring pressed arms and retaining pins on said arms engaging said openings and groove.

In testimony whereof I aflix my signature.

JERRY J. SULLIVAN. 

